effect-io-ai

Package: effect
Module: Layer

Layer.makeMemoMap

Constructs a MemoMap effectfully so it can be used to build additional layers.

Example (Creating a memo map in an effect)

import { Context, Effect, Layer } from "effect"

class Database extends Context.Service<Database, {
  readonly query: (sql: string) => Effect.Effect<string>
}>()("Database") {}

// Create a memo map safely within an Effect
const program = Effect.gen(function*() {
  const memoMap = yield* Layer.makeMemoMap
  const scope = yield* Effect.scope

  const dbLayer = Layer.succeed(Database, {
    query: Effect.fn("Database.query")((sql: string) => Effect.succeed("result"))
  })
  const context = yield* Layer.buildWithMemoMap(dbLayer, memoMap, scope)

  return Context.get(context, Database)
})

Signature

declare const makeMemoMap: Effect<MemoMap, never, never>

Source

Since v2.0.0